smith



l. 0. SMITH.

Refuse Burner.

No. 99,793. Patented 'Feb. 115, 1870.

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IRA 0. SMITH, OF MUSKEGON, MICHIGAN.

Letters Patent No. 99,793, dated February 15,- 1870.

FURNACE FOR BURNING EDG-INGS, SAWD'U'S'I', 84c.

The Schedule referred to in these Letters Patent and making part of the same To whom tt may concern:

Be it known that I, IRA 0. SMITH, of Muskcgon, in the. county of Muskegon, and State of Michigan, have invented a new auduseful Improvement in a Furnace for Burning Edgings, Sawdust, and other Taste; and I do declare that the following is a true and accurate description thereof, reference being bad to the accompanying drawings and to the letters of reference marked thereon, and being a part of this specification.

Figure 1 is a perspective, and

Figure 2 a vertical section of my invention.

Like letters refer to like parts in each figure.

The object of my invention is the construction of a furnace so arranged as to retain a very great heat at all times'when in operation, and at the same time to have a great air drafi; and unusual conveniences for stirring the fire, so as to admit air to all parts of it, so that the waste slabs, edgings, bark, and sawdust made in the manufacture oflumber in saw-mills (which waste materials are always green or water soaked, and are inclined to pack closely wherever place may be burned as fast as they accumulate.

The nature of my invention consists in a conical furnace, with a dome made of suitable material, and provided with a grate near its bottom with several openings, both directly above and below the grate, for admission of air and for stirring the fire, which openings are furnished with doors, and with an opening near the top for the admission of the waste material to be burned, which opening has a door so suspended from its top that it will close by its own weight, and

'also with openings above and near the grate for the escxpe'of smoke into a suitable flue or chimney.

In the drawings-- I A represents a comically-shaped kiln or furnace, and B are fire-grates secured therein at any desired height above the base.

0 are doors covering and closing openings in the being just above the grates and the other some considerable distance above.

G is a door near the top of the kiln, and covers the opening through which the refuse is introduced into the kiln. This dooris hung or pivoted at the top 'in such a manner that it will at all times be closed unless it is compelled to open. The opening is so constructed that its bottom side inclines downward and inward, so that anything thrown upon it will slide down against the lower part of the door and compel it to open, when the material will drop into the kiln and the door close.

by its own weight. The drawing shows very fully the way the door is hung, and any further description of the operation of the device is deemed unnecessary.

\Vhat Iclaim as my invention, and desire to secure by Letters Patent, is 4 The furnace above described, provided with the grat B, the doors 0, D, and G, and the openings covered by them, the smoke openings F, and the. fine E, when constructed, arranged, and operating as and for the purpose above set forth.

IRA 0. SMITH.

Witnesses ASHLEY B. FURMAN, H. D. BAKER. 

